Life Span
Perennial
Perennial
Type
Grass
Broadleaf Evergreen
Origin
China
Europe, Russia
Types
Greenstripe Vivax, Moso, Weavers Bamboo, Oldhamii
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
15002
0
40000
👆🏻
Habitat
Subtropical climates, Wet Woods
Cold Regions, stream banks
USDA Hardiness Zone
8-116-11
0
99
👆🏻
AHS Heat Zone
12 - 8
-
Sunset Zone
H1, H2, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
21,22
Habit
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
1,000.00 cm20.00 cm
0
3900
👆🏻
Minimum Width
10.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
-
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Orange Red
Leaf Color in Spring
Dark Green
Red, Green, Copper
Leaf Color in Summer
Light Green
Green, Blue Green
Leaf Color in Fall
Dark Green
Green, Blue Green
Leaf Color in Winter
Dark Green
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Acicular
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Medium
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
-
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Container, Ground
Container, Ground
How to Plant?
Grafting, Seedlings, Stem Planting, Transplanting
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Needs watering once a week, Use Mulches to help prevent water loss during hot and windy weather, Water Deeply
Allow to dry out slightly between watering, Water daily during growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Do not prune during shooting season, Prune in late summer or fall, Remove damaged leaves
Cut or pinch the stems, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Black sooty mold, Mealybugs, Mosaic viruses, Powdery mildew, pythogens, Stem rot
Aphids, Stem spot
Plant Tolerance
Drought
Shallow soil, Sun
Flowers
-
Showy
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Coarse
Medium
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Deers, Rabbits, Rats, Squirrels
Ants, Butterflies, pollinators
Allergy
allergic conjunctivitis, Asthma, Inflammation, Throat itching
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
Showy Purposes
Cottage Garden, Showy Purposes
Beauty Benefits
-
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Edible Uses
✔
✘
✔
✘
Environmental Uses
Agroforestry, Air purification, No fertilizer, pesticides, or herbicides needed
Air purification, Fixes Nitrogen
Plant Benefits
Medicinal Uses
Clears heat, Cold, fidgeting, Treating fever, Urinary tract problems
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Leaves, Stem
Leaves, Twigs
Other Uses
Application in Handicrafts, Showy Purposes, Used As Food, Used in Furniture, Used in paper industry
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Screening / Wind Break, Tropical
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
BAMBUSA oldhamii
Symphytum asperum
Common Name
Clumping Bamboo, Giant Timber Bamboo, Oldham's Bamboo
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Bānsa
Blackwort
In German
Bambus
Blackwort
In French
Bambou
Blackwort
In Spanish
Bambú
Blackwort
In Greek
μπαμπού
Blackwort
In Portuguese
bambu
Blackwort
In Polish
Bambus
Blackwort
In Latin
Bamboo
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Liliopsida
Magnoliopsida
Order
Poales
Lamiales
Family
Poaceae
Boraginaceae
Genus
Bambusa
Symphytum
Clade
-
Angiosperms, Eudicots, Rosids
Tribe
Bambuseae
-
Subfamily
-
Boraginoideae
Number of Species
9135
1
27800
👆🏻